Machine for inserting fasteners



J. F. DAVEY.

MACHINE FOR INSERTING FASTENERS.

APPLlCATION FILED JAN. 8, 1918 Patented May 16, 1922.

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J. F. DAVEY. MACHINE FOR INSERTING FASTENERS.

APPLICATION HLED JMLB. l9l8. I I

Patented May 16, 1922.,

2 SHEETS-SHEET 2.

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UNITED STATES PATENT OFFICE.

JOHN DAVEY, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORPORATION, 01? PATERSON, NEW JERSEY, A CORPORATION ,OF NEW JERSEY.

MACHINE FOR INSERTIN G FASTENERS.

no at Application filed January 8, 1918.

To or! 207mm it may concern:

llc it known that 1, JOHN F. DAvEY, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massaclmsctts,have invented certain Imn'ovements in Machines for Inserting Fasteners, of which the following description, in connection with the accom )anying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

'lliis invel'ition relates to eyeleting imachines and the like and more particularly to those machines which are arranged for setting blind or invisible eyelets in the uppers of boots and shoes.

lln setting invisible eyelets in a shoe upper, in accordance with the usual practice,

the outer part of the upper is perforated and the eyelets are set in the lining or stay in rwistcr with the holes in the outerpart oil. the upper. in setting blind, eyelets the operation is reversed. and, customarily, the welels are set in the outer part of the upper in register with holes p1mched through the Helm); or stay. .ln Letters Patent of the United l ltates No. 11,253,121, granted Janumy 8, l are, on an application of J. W. Tlarna, their is illustrated a machine which is provided with a tubular punch for perforating one of the superposed .la vers of material, with a punch and, die for perforating the other layer, and with a device for setting an eyelet in one of the holes thus formed. Such a machine putter-ably embodies an intermcdiatc plate or anvil which is adapted to be imicrti-nl between the superposed layers of work such, for example, as the leather and lining of a shoe upper, and this anvil serves as a cutting block for the tubular punch, as a die for the solid punch, and

as an upsetting die for clinching the eye-- let. ll machine anmed 111 this manner is to be inserted and under these circumsti, the holding of the eyelet is improved.

lhe punch and die may also be utilized advuntagcoiuily in perforating the textile maerial which is often found on one part or the other a shoe upper.

Specification of Letters Patent.

Patented May 16, 1922.

Serial No. 210,890.

The general object of this invention is to provide an improved machine of the general type above described without sacrilicing the important advantages characteristic of such machines.

In a machine using an apertured' anvil plate which serves as a die for a solid punch, it is very essential that the alinement of the punch with the aperture of the intermediate plate shall be strictly maintained. Such perfect alinement is diflicult to maintain, however, where the feeding of the work is effected by a lateral movement of the o ierating tools in. engagement therewith. Accordingly, it has been found expedient in some to provide separate work feeding means in the form of laterally movable work engaging members which are independent of the operating tools, and thus to avoid the necessity for lateral movement of said tools. lVith certain classes of work it may be found that the layers of work are fastened together upon all but one side. A marked example is found in the case of the upper of an oxford shoe. In such a case the lateral feeding movement of the Work must be so controlled, when the intermediate anvil plate approaches an extremity of the work where, for example, there is a line of stitching extending at an angle to the direction of feeding movement, that such a row of stitching may not be brought up forcibly against the side of the intermediate plate and the stitching ripped or the upper torn.

An important feature of this invention consists in mechanism responsive to a characteristic of the work such, for example, as its contour, that will alter the action of the work feeding means, such alteration, in the present instance, having the effect of rendering the feeding means inoperative. A conspicuous advantage of such mechanism as applied to a machine of the type above mentioned, is that it insures against mutilation or destruction of the work which might result from ln'inging the same forcibly into engagement with a relatively fixed portion of the machine. \Vhilc this problem is herein discussed as embodied in a particular machine and a particular device, it is an preciated that the invention is of broader application and is not limited except as dclined in the appended claims.

lOO

In a machine of this type employing a solid punch, it has been proposed to mount the punch movably within an eyelet presenting set and resiliently to hold it in projected position. Such an arrangement, while possessing substantial advantages, is, however, not wholly satisfactory, and a feature of this invention relates to improved mechanism for positively and independently controlling the movements of the solid punch and the surrounding set.

Another object of the invention is to provide means for maintaining the work positively against displacement during the intervals when it is not held by the feeding means. Accordingly a feature of the invention consists in operating a tool such as a punching tool, for example, so as to maintain the tool in the work during the intervals when the work is released by the feeding means.

Other features of the invention will appear after a consideration of the follow ing specification describing one particular embodiment of the invention which is illustrated in the accompanying drawings in which,-

Fig. l is an angular perspective of the machine as viewed from one side thereof;

Fig. 2 is a view of the front end of the machine in stop position with the work inserted ready for the insertion of fastenings therein;

Fig. 3 is a similar view in punching posi tion;

Fig. 4 is a view showing the grippers open and the work held against lateral movement by the top punch;

Fig, 5 is a view showing the grippers closed upon the work in the position which they occupy when they begin to feed the work and with the punches separated; and

Fig. 6 is a vertical section of the tools in set position showing the independent control of the lower punch and set.

The parts of the machine are supported in a frame 10, extending longitudinally of which is a driving shaft 12 through which power may be applied. The frame 10 embodies an upper cross piece 14C in which is mounted a vertical stud 16 which is bifurcated at its upper end to form a pivotal support for the punch lever 18 carrying a tubular punch 19. Movement of this lever is effected by means of a yoke 20 surrounding the rear end of the lever and mounted upon the upper end of a rod 22 whose lower end co-operates with a cam 2e located upon the shaft 12 and designed to oscillate the punch lever at the proper times within the cycle of the machine. Mounted near the front end of the machine and extending forwardly therefrom is a bracket 30 supporting a rearwardly extending intermediate plate 32 which is apertured at 34 in alinement with the operating tools and is provided upon its lower surface with an upsetting die 36 surrounding this aperture. The stitched upper is mounted over this plate is a position which depends upon whether blind or invisible eyelets are to be set, with one or more layers of the upper above the plate and the remaining layer or layers below the plate.

Eyelets are presented against the upsetting surface 36 by means of a ertically reciprocable die 40 guided in bearings upon the main frame and actuated by means of an in ternal cam 42 mounted upon the main shaft 12 and connected to the die 40 by means of a roller 44. Set within the die -l() is an independently and movable solid punch {l6 which is normally retracted by me: us of a spring t8 and is indepeiulently positnely projected upwardly by an external cam co-operating with a roller 52 mounted upon a stud attached to the punch ill and projecting outwardly through a slot 54: in the lower die. The upper end of this punch 46 is somewhat reduced in diameter and dimensioned to lit the aperture 3% in the plate 32. A slightly larger portion below the upper end of the punch serves more accurately to center the eyelets which are guided thereon as they are presented against the upsetting die 36 by the lower die 4-0. plied to the lower die through a raceway of any suitable form such. for example, as that illustrated in Letters Patent ol. the United States No. (303,023 granted April .50. 1898, upon the application of S. Field. and such a raceway will preferably be moved backward and forward by means of a cam 62 upon the main shaft 12. Eyelets will be removed from the raceway in the customary fashion, the lowermost eyelet being threaded by the lower punch All acting as a spindle, and will be removed from the raceway by a lateral movement thereof as it recedes out of the path of the punch.

In order to insure the accurate spacing of the eyelets, mechanical means are usually provided for teeding the work. and in the illustrated embodiment, surh means will be seen to comprise articulated grippers Tl) pivotally mounted upon the outer end of u horizontally extending bar 72 which is pivoted upon the stud l6 beneath the punch lever 18, and is capable of independent movement in a horizontal plane. The aotuathm o l this bar may be conveniently effertcd by means of a cam 74- mounted upon the main sha it '12 acting against one arm 76 of a bell crank lever pivoted upon a vertical axis in the frame 10 and having an upper arm -onnected by a link 80 to a slotted plate 9; which is pivoted at the rear of the machine for movement in a horizontal plane below the rear end of the supporting bar 772. The rear end of the supporting bar T2 is also slotted and a connection between the said l lvclets are supbar and the slotted plate 82 is effected by means oi superimposed blocks El-1h 86 having portions entering the respective slots. These blocks are pivotally connected by means of a vertical stud and their position controlled by means Oil a link 88 coiimected to a handleQO. The position ol? this hanijlle may be controlled in any siilitable manner but preferably by association. with a peg or pegs mounted in a gage plate 92 as in the well known Perfection eyelettiiji g' machini-i. A sinking (not show [1) attached to the handle it tends to cause it to assume a position at one end of its movement. Regulation of the length of feed may thus be determined by proper positioning of the handle 90 with reference to the gage plate.

inasmuch as a repetition Oil the feeding operation after the last eyelet has been set might result in ripping; the stitching in the upper, extendingat an angle to the direction of feedingmovement, by bringing it against the side oi the intermediate plate 32, means have been provided which shall be responsive to a characteristic of the work, as tor example, its co tour or the contour oi? the stitching therein, automat ically to disable the :leedingg; means until the machine comes to rest the desired point in its cycleoili motions. In the illustrated embodiment, this disabling means comprises a trigger 100 which. is iixed upon a. vertical shaft 102 mounted in bracltets extending forwardly 'lrom the bracket 0. This triggcris pretarably located in substantially the same plane as the intermediate plate 32 and so arraiu 'ed that the engagement oi? the work therewith. by reasoi'i. ota changing .:har:u:teristic oil the work will cause a slight turning movement of the vertical shaft. riot its lower end the vertical. shalt-t provided with. a rearwardly extending; arm 104.- to which is attached a pivoted extension 106 which normally held, by a spring 110, against a step 108 formed upon the arm. A s nfinog lift on the shailit 102 normally tends to maintain the shaft and its connected parts in. such a position that the trigger is displmd from the intermediate plate. The opeinnp; and closing oi? the articulated gri ipers is etiected by means of a vertical rod 1530 Wlllfil'l bifurcated at its upper end and provided with a horizontal pin passing through a slot 122 in the lower gripper. This rod held against turning movement by being formed hall": cylinder and is normally held in uppermost )osition so that the grin ers are moved against one another firmly 5y means of. a spring]: 124:. The rod ll )0 is irovic w'... i 2 is iowsr 01 r c led 1th aiollei Lt t r nl n raging an internal earn 196 mounted upon the main shaft 12. 'llhe lower end oi the rod is also provided with a forwardly extending horizontal member 128 having a verti=.-a1 stud 130 at its outer end whose axis is arranged. to intersect the path of movement of the outer end of the pivoted eaten siou. 106. It will. be noted that this pivotingot the two parts oi? the arm 104i and their resilient relation allows the tri ger to be moved into operative position adjacent to the intermediate plate and the arm .ltlel: to he turned regardless of the position oil the vertical stud .lSt Bis soon however, as the stud ill-l0 has been depressed in order to se iarate the grippers tor again grasping the work, the pivoted piece lot") will be urged into alinement with the stud and will prevent its upward movement under the combined guidance oi the cam and the actuation of the spring 1%.

The operation ot the fastener inserting tools will talre place according to the to llowing cycle. llpon rotation of the main shaft the upper punch 19 will be :lorced against and part way it not entirely throu ggh the layer oi work disposed upon the upper side oi? the intermediate plate 32, and, because of the dimensions Oi said plate may slig'l'itly depress the \wn'lring end of the same. About the same time the lower and lower punch will be moved upwardly so that the lower punch may piclr an eyelet from the raceway in the usual il ashion and then proceed to punch the loworlayer ot the worlr by entering; the aperture 34 in the intermediate plate which then acts as a punching die for the solid punch. The extent of moveme t communicated to this solid punch nuiy be such that it passes com- ;iletely through the plate and into the interior oi? the uppe; punch. ll. them the upper punch is (i'l' such dimensions that the opening; theiictlii'ough '1 oi the same diantieter as the diameter oi: the lower punch, it also will act as a die and in this capacity will cooperate with. the solid punch to complete the punching oi? the upper layer in the event that the latter has not already been completely punched. Regardless of this continsnvcyu however, the lower set will be moved upvnirt y to carry an eyelet along}; the lai, r porti .1 oi the solid punch 46 and into engagement with the upsetting die upon the lower side of the intermediate plate. The eyelet will theretliore be set in the layer or layers oi? work that are below the intermediate plate. liurthermore, in "ass the intermediate plate has been slightly depressed by the action of: the upper punch. this movement of the lower set in presenting an eyelet against the upsetting die will. raise the plate forcibly 2 the upper punch and insure tl'iat i have passed completely thrin'ic h the work.

its this cycle of operations is repeated to set a series of. eyelets. the work will be moved laterally by means oi the feeding ineehanii-sm already described. The grippers '70, being separated by the action of the cam 126, are moved to the right, from the position shown in Fig. 1, by the cam 7a through the arm 7 8 and link and the blocks connecting the lower slotted plate 82 with the supporting bar 72. The position to which the grippers move before being allowed to close in contact with the work is determined by the position of the handle and will therefore vary in accordance with the desired length of feeding movement. During this part of the operation of the feeding mechanism, the upper punch, because of the design of its actuating cam 24, is held in engagement with the work and will prevent displacement thereof. As soon, however, as the grippers are brought into engagement with the work and are ready to commence their feeding movement towards the left, the upper punch is moved away from the work and the work is entirely freed from the operating tools since the lower punch and set have already previously descended out of engagement with the work. The spring 124 is then allowed by the cam 126 to cause the grippers to engage and clamp the margin of the work extending rearwardly from the intermediate plate 32 and the cam 7 1 causes the supporting bar 72 to be rotated around its pivot to move the grippers and the work toward the left. The extreme position of feeding movement in the particular embodiment here shown is a fixed point. The design of the cam 126 controlling the separation of the grippers is such that the grippers are maintained in closed position to hold the work during the fastener setting operation. They are thus, while the upper punch is still in engagement with the work, again separated and moved to the right preparatory to another engagement with the work and another feeding movement. It will be seen that the extent of the feeding movement is Varied by adjustment of the handle 90 because such adjustment changes the relation of the radii of the slotted plate 82 and the rear arm of the slotted bar 72 by moving the pivoted blocks which serve as a connection therebetween. When the last fastener has been set or when an extremity of the work has been reached, the trigger mechanism already described will come into play in response to a characteristic of the work, and by moving the arm 104: with its extension 106 into the path of the stud 130, will alter the action of the feeding means by preventing the grippers from again engag ing the work. i

The terms horizontal and vertical, backward, forward, and laterally have been freely used in the specification and claims in order to simplify the description and avoid unnecessary verbiage. It will be understood, however, that these terms are not to be considered as limitations since they are inranged to clench a blind or invisible eyelet between superposed layers of an article of work, an eyelet-inserting tool and a punching tool telescopically related and arranged to function against one side of said clenching member, means arranged to operate said punching tool relatively to said inserting tool while in registration with said clcnrhing member, means arranged to operate said inserting tool relatively to said punching tool whlle in registration with said clenching member, and workpunching means arranged to function against the opposite side of said clenching member substantially opposite the clenching area thereof.

2. A fastener-inserting machine comprising a punch-and-die couple the die member of which has a clenching surface surrounding its punch-receiving hole, mechanism arranged to operate said punch positively, an eyelet-inserting tool surrounding said punch, and mechanism arranged to operate said inserting tool to force an eyelet against said clenching surface.

3. In a fastener insert-ing machine, an apertured work supporting plate provided with an upsetting die surrounding the aperture, an operating-tool comprising a telescopically arranged punch and die, each of the parts of which are positively cont-rolled, said tool comprising an internal member constructed and arranged to co-opcrate with the aperture in the work supporting plate to punch the work and to receive an eyelet. said punch being provided with an enlarged portion serving better to guide the eyelet which is moved therealong by the action of the outer member of the operating tool for presentation against the upsetting die.

4. A machine organization comprisii'ig mechanism for performing a series of operations on an article of work, work-feeding mechanism including cooperative members arranged to grip, feed and release the work periodically, and means controlled by the work to prevent said members from performing one of the three said functions in its regular order while said work-tleeding mechanism continues otherwise to act.

5. A fastener-setting machine comprising work-punching means, fastener-selting means and work-feeding means organized to punch a hole, set a fastener therein and feed the work in the order recited. and means controlled by the work to render said feeding means non-effective as to a subsequent cycle in which the punching means and fastener-setting means function.

6. In a machine for performing a series of operations on an article of work, work feeding mechanism arranged to engage and disengage the work repeatedly to feed the latter step by step, and means operable by a characteristic of the work to restrain said feeding mechanism from rc-engaging the worlo while the machine is otherwise operating '7. In a machine for performing a series of operations upon a piece of work, work feeding means constructed and arranged to move the work for the performance of successive operations. and means operable by an obstruction on the work during one feed.- ing operation to render the feeding means non-effective as to the next cycle of operations in which the machine functions.

8. In a machine for performing a series of operations on an article of work, a principal mechanism arranged to perform said operations, work-feeding mechanism arranged to function in each cycle after said. principal mechanism. has functioned, and. means arranged to be responsive to a charactoristic of the work to prevent said feeding means from. acting on the work in a cycle otherwise effective.

9. In a machine for performing a series of operations upon a piece of work, work feeding means constructed and arranged to grasp intermittently the work and move it forward step by step for the performance of the successive operations, and means responsive to a changing characteristic of the work constructed and arranged to prevent the work feeding means from grasping the work after said means has been actuated.

10. In a machine for performing a series of operations upon a piece of work, work feeding means comprising a pair of grippers constructed and arranged to engage intermittently the work and move the same laterally for the performance of the successive operations, and meansresponsive to a changing characteristic of the work constructed. and arranged to prevent the closing of said grippers into engagement with the work after said means has been actuated.

11. In a machine for performing a series of operations upon piece of work, work feeding mechanism comprisingmeans for intermittently engaging the work and moving the same laterally, and means arranged to prevent said work engaging means from engaging the work after the latter has been fed to a predetern'iined position.

12. In a fastener inserting machine, a punching tool for punching the work at predetermined intervals, work feeding members adapted to engage and feed the work intermittently, and means for actuating and controlling said punching tool and said work feeding members constructed and arranged to cause the tool to be maintained in the work when the work feeding members are disengaged from the work.

1.3. In av machine for performing a series of ope ations upon a piece of work, workfeeding mechanism. comprising carrier, cooperative worlegrippers carried thereby and arranged to clamp the work one against. the other, means arranged to operate one or both of said grippers to grip and release the work, an operating lever, shiftablc means arranged to transmit motion from various parts of said lever to said carrier, and man ually movable means arranged to shift the latter said means relatively to said lever to vary the length. of feeding movement imparted to said grippers.

14. In a machine for performing a series of operations upon a piece of work, work feeding means comprising a pair of articulated grippers mounted upon an oscillatable member having lateral movement in. a horizontal plane to impart feeding movement to the work, a vertically movable device connected to one of said {,{PIPPGI'S and constructed and arranged to control the movement of the grippers toward and away from the work, and means responsive to a changing characteristic of the work adapted when actuated to be interposed in the path of movement of said vertically movable means.

15. In a machine for performing a series of operations upon apiece of work, work feeding means comprising an oscillatable member mounted upon a vertical axis, a pair of articulated grippers pivotally supportedv upon said member, a vertically movable member adapted to control the movement of the grippers toward. and away from the work, and a pin and slot connection between said member and one of the grippers constructed and arranged to allow relative lateral movement of the grippers with relation to said controlling member.

16. In a machine for performing a series of operations upon a piece of work, a work supporting plate, means responsive to a changing characteristic of the work pivot ally mounted adjacent to said plate, work feeding means constructed and arranged to engage intermittently the work and impart a lateral feeding thereto, means for controlling the movement of the work engaging means toward and away from the work, and means controlled by said pivotal means for controlling the movement of said latter means.

17. In a machine for performing a series of operations upon a piece of work, work feeding means comprising a member mov able toward. and away from the work to enga e and disengage the same, means contro ling said movements, and means for engaging said controlling means provided with a is-placeable portion constructed and arranged to allow movement of said engaging means into operative position regardless of th relativ ositionof the controlling means.

18. In a machine for performing a series of operations upon a piece of work, work feeding means movable into and out of en gagement with the work means for controlling said movements, and means responsive to a characteristic of the work constructed and arranged for movement into and out of the path of movement of said controlling means and arranged to permit action thereof regardless of the relative position of the controlling means.

19. In a fastener-inserting machine, fastener-inserting mechanism comprising co-operative setting members one of which is formed and arranged to operate between superposed layers of the work and which perforated to serve as a punch-die, a second punch-die arranged to engage the work in line with the perforation of the first said punclrdie, and a punch movable independently of the other one of said setting members to co-operate with first one and then the other of said punch-dies to punch the work.

20. In a fastener-inserting machine, fastener inserting mechanism comprising cooperative setting members one of which is formed and arranged to operate between superposed layers of the work and which is perforated to serve as a punch-die, a punch movable independently of the other one of said members to punch, conjointly with said punch-die, a hole in one of the layers for the reception of a fastener and means arranged to co-actwith said punch to punch a hole in the other one of the layers.

21. In a fastener-inserting machine, a punch-bed constructed and arranged to function between superposed layers of work, a punching tool and an eyelet-inserting tool arranged to act coaXially against one side of the punch-bed, a tubular cutter arranged to act against the opposite side of the punch bed coaxially with said tools, work-clamping-andfeeding mechanism arranged to engage the work intermittently. and means arranged to operate said tubular cutter so as to maintain the work impaled on the punchbed during the intervals when the clampingand-feeding mechanism is disengaged from the work.

22. A fastener-inserting machine comprising in combination fastener-setting mechanism, an axially movable punching tool, work-feeding mechanism including reciprocating work-engagin g means constructed and arranged to engage the work intermittently. and means for operating said punching tool so as to maintain the latter in a punched hole of the work during the intervals when the work not held by said work-engaging means.

23. A fastener-setting machine comprising, in combination, a fastener-inserting tool and a punching tool arranged in coaxial relation work-feeding mechanism including jaws arranged to grip and feed the work intermittently, and means for operating said punching tool so as to maintain the latter in the work during the intervals when the work is released by the feeding jaws.

24. In a fastener-inserting machine, fastener-inserting mechanism and work-feeding mechanism constructed and arranged to opcrate in the order stated, with regard to a cycle of operations, and automatic means controlled by a physical characteristic of the work to discontinue the functioning of the said work-feeding mechanism while permitting the said fastener-inserting mechanism to continue to function.

In testimony whereof I have signed my name to this specification.

JOHN F. DAVEY. 

